How long does it take for children to change their teeth?

Parents are very concerned about their children's tooth replacement, because if they do not pay attention to protection during the tooth replacement period, it is easy to cause permanent tooth deformities, crowding and misalignment of teeth, and affect facial appearance. Tooth replacement determines the shape of children's teeth when they grow up. Parents must have a certain understanding of the time of tooth replacement so that they can better take care of their children's teeth. Below I will introduce the time when children's teeth change.

People grow teeth twice in their life, namely deciduous teeth and permanent teeth. There are 20 deciduous teeth, which usually start to erupt around 6 months old and are fully grown at 2-3 years old. There are 28-32 permanent teeth (the number of wisdom teeth is 0-4), which usually start to grow around 6 years old and 28 are fully grown at 12-13 years old (the number of wisdom teeth varies from person to person). Therefore, the tooth replacement period is usually between 6 and 12 years old for Nanchang babies. There are certain rules for tooth replacement, which can be simply described as "a certain time, a certain order, left-right symmetry, lower first then upper". Left-right symmetry and lower first then upper refers to teeth with the same name.

The physiological shedding of the first deciduous tooth usually occurs around the age of 6, but it can also occur as early as 4 years old, or as late as 7-8 years old, so there is no need to worry. Naturally fallen deciduous teeth have no roots and the fallen surface appears eroded. Parents should pay attention to observe and not confuse them with broken roots of deciduous teeth.

There are two different opinions about which permanent tooth grows first in babies. One is that the first permanent molar that usually grows around the age of 6 grows close to the last deciduous molar, called the sixth-year molar, which erupts slightly earlier than or at the same time as the lower central incisor. Another theory is that babies first replace the two middle front teeth in the lower row. Dentists say that each baby in Nanchang may be different. Then, Nanchang babies grow upper central incisors and lower lateral incisors at the age of 7-8, upper lateral incisors at the age of 8-9, first and second canines at the age of 9-12, and permanent canines at the age of 10-12.

The above is the time when children’s teeth change. Now parents know the relevant knowledge about children’s tooth replacement. During the period of tooth replacement, parents must pay more attention to their children to prevent tooth loss due to trauma. Children should be taught not to lick their erupted permanent teeth frequently, and should be urged to brush their teeth in the morning and evening and eat less snacks and drinks.